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7640a5de LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
41550d40 | 6 | Copyright 2011 Lennart Poettering |
7640a5de LP |
7 | |
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
7640a5de LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
7640a5de | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
7640a5de LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
7640a5de LP |
22 | #include <errno.h> |
23 | #include <string.h> | |
24 | #include <unistd.h> | |
c2a14cf0 | 25 | #include <dlfcn.h> |
7640a5de LP |
26 | |
27 | #include "util.h" | |
28 | #include "strv.h" | |
ad740100 | 29 | #include "def.h" |
b52aae1d | 30 | #include "virt.h" |
4d1a6904 | 31 | #include "env-util.h" |
a5c32cff HH |
32 | #include "fileio-label.h" |
33 | #include "label.h" | |
66a4c743 LP |
34 | #include "bus-util.h" |
35 | #include "event-util.h" | |
91f9dcaf | 36 | |
7640a5de LP |
37 | enum { |
38 | PROP_HOSTNAME, | |
39 | PROP_STATIC_HOSTNAME, | |
40 | PROP_PRETTY_HOSTNAME, | |
41 | PROP_ICON_NAME, | |
7871c8e9 | 42 | PROP_CHASSIS, |
7640a5de LP |
43 | _PROP_MAX |
44 | }; | |
45 | ||
66a4c743 LP |
46 | typedef struct Context { |
47 | char *data[_PROP_MAX]; | |
48 | Hashmap *polkit_registry; | |
49 | } Context; | |
ad740100 | 50 | |
66a4c743 | 51 | static void context_reset(Context *c) { |
7640a5de LP |
52 | int p; |
53 | ||
66a4c743 LP |
54 | assert(c); |
55 | ||
7640a5de | 56 | for (p = 0; p < _PROP_MAX; p++) { |
66a4c743 LP |
57 | free(c->data[p]); |
58 | c->data[p] = NULL; | |
7640a5de LP |
59 | } |
60 | } | |
61 | ||
66a4c743 LP |
62 | static void context_free(Context *c, sd_bus *bus) { |
63 | assert(c); | |
64 | ||
65 | context_reset(c); | |
66 | bus_verify_polkit_async_registry_free(bus, c->polkit_registry); | |
67 | } | |
68 | ||
69 | static int context_read_data(Context *c) { | |
7640a5de LP |
70 | int r; |
71 | ||
66a4c743 LP |
72 | assert(c); |
73 | ||
74 | context_reset(c); | |
7640a5de | 75 | |
66a4c743 LP |
76 | c->data[PROP_HOSTNAME] = gethostname_malloc(); |
77 | if (!c->data[PROP_HOSTNAME]) | |
7640a5de LP |
78 | return -ENOMEM; |
79 | ||
66a4c743 | 80 | r = read_one_line_file("/etc/hostname", &c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
81 | if (r < 0 && r != -ENOENT) |
82 | return r; | |
83 | ||
84 | r = parse_env_file("/etc/machine-info", NEWLINE, | |
66a4c743 LP |
85 | "PRETTY_HOSTNAME", &c->data[PROP_PRETTY_HOSTNAME], |
86 | "ICON_NAME", &c->data[PROP_ICON_NAME], | |
87 | "CHASSIS", &c->data[PROP_CHASSIS], | |
7640a5de LP |
88 | NULL); |
89 | if (r < 0 && r != -ENOENT) | |
90 | return r; | |
91 | ||
92 | return 0; | |
93 | } | |
94 | ||
c2a14cf0 | 95 | static bool check_nss(void) { |
c2a14cf0 LP |
96 | void *dl; |
97 | ||
7871c8e9 LP |
98 | dl = dlopen("libnss_myhostname.so.2", RTLD_LAZY); |
99 | if (dl) { | |
c2a14cf0 LP |
100 | dlclose(dl); |
101 | return true; | |
102 | } | |
103 | ||
104 | return false; | |
105 | } | |
106 | ||
7871c8e9 | 107 | static bool valid_chassis(const char *chassis) { |
7640a5de | 108 | |
7871c8e9 LP |
109 | assert(chassis); |
110 | ||
111 | return nulstr_contains( | |
112 | "vm\0" | |
113 | "container\0" | |
114 | "desktop\0" | |
115 | "laptop\0" | |
116 | "server\0" | |
117 | "tablet\0" | |
118 | "handset\0", | |
119 | chassis); | |
120 | } | |
121 | ||
122 | static const char* fallback_chassis(void) { | |
7640a5de LP |
123 | int r; |
124 | char *type; | |
125 | unsigned t; | |
7871c8e9 LP |
126 | Virtualization v; |
127 | ||
128 | v = detect_virtualization(NULL); | |
129 | ||
130 | if (v == VIRTUALIZATION_VM) | |
131 | return "vm"; | |
132 | if (v == VIRTUALIZATION_CONTAINER) | |
133 | return "container"; | |
134 | ||
135 | r = read_one_line_file("/sys/firmware/acpi/pm_profile", &type); | |
136 | if (r < 0) | |
137 | goto try_dmi; | |
138 | ||
139 | r = safe_atou(type, &t); | |
140 | free(type); | |
141 | if (r < 0) | |
142 | goto try_dmi; | |
143 | ||
144 | /* We only list the really obvious cases here as the ACPI data | |
145 | * is not really super reliable. | |
146 | * | |
147 | * See the ACPI 5.0 Spec Section 5.2.9.1 for details: | |
148 | * | |
149 | * http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf | |
150 | */ | |
151 | ||
152 | switch(t) { | |
153 | ||
154 | case 1: | |
155 | case 3: | |
156 | case 6: | |
157 | return "desktop"; | |
158 | ||
159 | case 2: | |
160 | return "laptop"; | |
7640a5de | 161 | |
7871c8e9 LP |
162 | case 4: |
163 | case 5: | |
164 | case 7: | |
165 | return "server"; | |
7640a5de | 166 | |
7871c8e9 LP |
167 | case 8: |
168 | return "tablet"; | |
169 | } | |
170 | ||
171 | try_dmi: | |
7640a5de LP |
172 | r = read_one_line_file("/sys/class/dmi/id/chassis_type", &type); |
173 | if (r < 0) | |
174 | return NULL; | |
175 | ||
176 | r = safe_atou(type, &t); | |
177 | free(type); | |
7640a5de LP |
178 | if (r < 0) |
179 | return NULL; | |
180 | ||
181 | /* We only list the really obvious cases here. The DMI data is | |
182 | unreliable enough, so let's not do any additional guesswork | |
41550d40 LP |
183 | on top of that. |
184 | ||
185 | See the SMBIOS Specification 2.7.1 section 7.4.1 for | |
186 | details about the values listed here: | |
187 | ||
188 | http://www.dmtf.org/sites/default/files/standards/documents/DSP0134_2.7.1.pdf | |
189 | */ | |
7640a5de LP |
190 | |
191 | switch (t) { | |
192 | ||
193 | case 0x3: | |
194 | case 0x4: | |
195 | case 0x6: | |
196 | case 0x7: | |
7871c8e9 | 197 | return "desktop"; |
7640a5de | 198 | |
7871c8e9 | 199 | case 0x8: |
7640a5de LP |
200 | case 0x9: |
201 | case 0xA: | |
202 | case 0xE: | |
7871c8e9 LP |
203 | return "laptop"; |
204 | ||
205 | case 0xB: | |
206 | return "handset"; | |
7640a5de LP |
207 | |
208 | case 0x11: | |
41550d40 | 209 | case 0x1C: |
7871c8e9 | 210 | return "server"; |
7640a5de LP |
211 | } |
212 | ||
7640a5de LP |
213 | return NULL; |
214 | } | |
215 | ||
66a4c743 | 216 | static char* context_fallback_icon_name(Context *c) { |
7871c8e9 LP |
217 | const char *chassis; |
218 | ||
66a4c743 LP |
219 | assert(c); |
220 | ||
221 | if (!isempty(c->data[PROP_CHASSIS])) | |
222 | return strappend("computer-", c->data[PROP_CHASSIS]); | |
7871c8e9 LP |
223 | |
224 | chassis = fallback_chassis(); | |
225 | if (chassis) | |
226 | return strappend("computer-", chassis); | |
227 | ||
228 | return strdup("computer"); | |
229 | } | |
230 | ||
66a4c743 | 231 | static int context_write_data_hostname(Context *c) { |
7640a5de LP |
232 | const char *hn; |
233 | ||
66a4c743 LP |
234 | assert(c); |
235 | ||
236 | if (isempty(c->data[PROP_HOSTNAME])) | |
7640a5de LP |
237 | hn = "localhost"; |
238 | else | |
66a4c743 | 239 | hn = c->data[PROP_HOSTNAME]; |
7640a5de LP |
240 | |
241 | if (sethostname(hn, strlen(hn)) < 0) | |
242 | return -errno; | |
243 | ||
244 | return 0; | |
245 | } | |
246 | ||
66a4c743 | 247 | static int context_write_data_static_hostname(Context *c) { |
7640a5de | 248 | |
66a4c743 LP |
249 | assert(c); |
250 | ||
251 | if (isempty(c->data[PROP_STATIC_HOSTNAME])) { | |
7640a5de LP |
252 | |
253 | if (unlink("/etc/hostname") < 0) | |
254 | return errno == ENOENT ? 0 : -errno; | |
255 | ||
256 | return 0; | |
257 | } | |
66a4c743 | 258 | return write_string_file_atomic_label("/etc/hostname", c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
259 | } |
260 | ||
66a4c743 | 261 | static int context_write_data_other(Context *c) { |
4f34ed54 | 262 | |
7640a5de LP |
263 | static const char * const name[_PROP_MAX] = { |
264 | [PROP_PRETTY_HOSTNAME] = "PRETTY_HOSTNAME", | |
7871c8e9 LP |
265 | [PROP_ICON_NAME] = "ICON_NAME", |
266 | [PROP_CHASSIS] = "CHASSIS" | |
7640a5de LP |
267 | }; |
268 | ||
269 | char **l = NULL; | |
270 | int r, p; | |
271 | ||
66a4c743 LP |
272 | assert(c); |
273 | ||
f73141d7 | 274 | r = load_env_file("/etc/machine-info", NULL, &l); |
7640a5de LP |
275 | if (r < 0 && r != -ENOENT) |
276 | return r; | |
277 | ||
278 | for (p = 2; p < _PROP_MAX; p++) { | |
279 | char *t, **u; | |
280 | ||
281 | assert(name[p]); | |
282 | ||
66a4c743 | 283 | if (isempty(c->data[p])) { |
f8440af5 | 284 | strv_env_unset(l, name[p]); |
7640a5de LP |
285 | continue; |
286 | } | |
287 | ||
66a4c743 | 288 | if (asprintf(&t, "%s=%s", name[p], strempty(c->data[p])) < 0) { |
7640a5de LP |
289 | strv_free(l); |
290 | return -ENOMEM; | |
291 | } | |
292 | ||
293 | u = strv_env_set(l, t); | |
294 | free(t); | |
295 | strv_free(l); | |
296 | ||
297 | if (!u) | |
298 | return -ENOMEM; | |
299 | l = u; | |
300 | } | |
301 | ||
302 | if (strv_isempty(l)) { | |
303 | ||
304 | if (unlink("/etc/machine-info") < 0) | |
305 | return errno == ENOENT ? 0 : -errno; | |
306 | ||
307 | return 0; | |
308 | } | |
309 | ||
a5c32cff | 310 | r = write_env_file_label("/etc/machine-info", l); |
7640a5de LP |
311 | strv_free(l); |
312 | ||
313 | return r; | |
314 | } | |
315 | ||
66a4c743 LP |
316 | static int property_get_icon_name( |
317 | sd_bus *bus, | |
318 | const char *path, | |
319 | const char *interface, | |
320 | const char *property, | |
321 | sd_bus_message *reply, | |
322 | sd_bus_error *error, | |
323 | void *userdata) { | |
7640a5de | 324 | |
66a4c743 LP |
325 | _cleanup_free_ char *n = NULL; |
326 | Context *c = userdata; | |
327 | const char *name; | |
328 | int r; | |
7640a5de | 329 | |
66a4c743 LP |
330 | if (isempty(c->data[PROP_ICON_NAME])) |
331 | name = n = context_fallback_icon_name(c); | |
7640a5de | 332 | else |
66a4c743 LP |
333 | name = c->data[PROP_ICON_NAME]; |
334 | ||
335 | if (!name) | |
336 | return -ENOMEM; | |
7640a5de | 337 | |
66a4c743 LP |
338 | r = sd_bus_message_append(reply, "s", name); |
339 | if (r < 0) | |
340 | return r; | |
341 | ||
342 | return 1; | |
7640a5de LP |
343 | } |
344 | ||
66a4c743 LP |
345 | static int property_get_chassis( |
346 | sd_bus *bus, | |
347 | const char *path, | |
348 | const char *interface, | |
349 | const char *property, | |
350 | sd_bus_message *reply, | |
351 | sd_bus_error *error, | |
352 | void *userdata) { | |
7871c8e9 | 353 | |
66a4c743 LP |
354 | Context *c = userdata; |
355 | const char *name; | |
356 | int r; | |
7871c8e9 | 357 | |
66a4c743 | 358 | if (isempty(c->data[PROP_CHASSIS])) |
7871c8e9 LP |
359 | name = fallback_chassis(); |
360 | else | |
66a4c743 | 361 | name = c->data[PROP_CHASSIS]; |
7871c8e9 | 362 | |
66a4c743 LP |
363 | r = sd_bus_message_append(reply, "s", name); |
364 | if (r < 0) | |
365 | return r; | |
366 | ||
367 | return 1; | |
7871c8e9 LP |
368 | } |
369 | ||
66a4c743 LP |
370 | static int method_set_hostname(sd_bus *bus, sd_bus_message *m, void *userdata) { |
371 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
372 | Context *c = userdata; | |
373 | const char *name; | |
102d8f81 | 374 | int interactive; |
66a4c743 LP |
375 | char *h; |
376 | int r; | |
d200735e | 377 | |
66a4c743 LP |
378 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
379 | if (r < 0) | |
df2d202e | 380 | return sd_bus_reply_method_errno(m, r, NULL); |
d200735e | 381 | |
66a4c743 LP |
382 | if (isempty(name)) |
383 | name = c->data[PROP_STATIC_HOSTNAME]; | |
7640a5de | 384 | |
66a4c743 LP |
385 | if (isempty(name)) |
386 | name = "localhost"; | |
7640a5de | 387 | |
66a4c743 | 388 | if (!hostname_is_valid(name)) |
df2d202e | 389 | return sd_bus_reply_method_errorf(m, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", name); |
7640a5de | 390 | |
66a4c743 | 391 | if (streq_ptr(name, c->data[PROP_HOSTNAME])) |
df2d202e | 392 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 393 | |
66a4c743 LP |
394 | r = bus_verify_polkit_async(bus, &c->polkit_registry, m, "org.freedesktop.hostname1.set-hostname", interactive, &error, method_set_hostname, c); |
395 | if (r < 0) | |
df2d202e | 396 | return sd_bus_reply_method_errno(m, r, &error); |
66a4c743 LP |
397 | if (r == 0) |
398 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 399 | |
66a4c743 LP |
400 | h = strdup(name); |
401 | if (!h) | |
402 | return log_oom(); | |
7640a5de | 403 | |
66a4c743 LP |
404 | free(c->data[PROP_HOSTNAME]); |
405 | c->data[PROP_HOSTNAME] = h; | |
7640a5de | 406 | |
66a4c743 LP |
407 | r = context_write_data_hostname(c); |
408 | if (r < 0) { | |
409 | log_error("Failed to set host name: %s", strerror(-r)); | |
df2d202e | 410 | return sd_bus_reply_method_errnof(m, r, "Failed to set hostname: %s", strerror(-r)); |
66a4c743 | 411 | } |
7640a5de | 412 | |
66a4c743 | 413 | log_info("Changed host name to '%s'", strna(c->data[PROP_HOSTNAME])); |
7640a5de | 414 | |
66a4c743 | 415 | sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "Hostname", NULL); |
7640a5de | 416 | |
df2d202e | 417 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 418 | } |
7640a5de | 419 | |
66a4c743 LP |
420 | static int method_set_static_hostname(sd_bus *bus, sd_bus_message *m, void *userdata) { |
421 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
422 | Context *c = userdata; | |
423 | const char *name; | |
102d8f81 | 424 | int interactive; |
66a4c743 | 425 | int r; |
7640a5de | 426 | |
66a4c743 LP |
427 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
428 | if (r < 0) | |
df2d202e | 429 | return sd_bus_reply_method_errno(m, r, NULL); |
7640a5de | 430 | |
66a4c743 LP |
431 | if (isempty(name)) |
432 | name = NULL; | |
7640a5de | 433 | |
66a4c743 | 434 | if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) |
df2d202e | 435 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 436 | |
66a4c743 LP |
437 | r = bus_verify_polkit_async(bus, &c->polkit_registry, m, "org.freedesktop.hostname1.set-static-hostname", interactive, &error, method_set_static_hostname, c); |
438 | if (r < 0) | |
df2d202e | 439 | return sd_bus_reply_method_errno(m, r, &error); |
66a4c743 LP |
440 | if (r == 0) |
441 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 442 | |
66a4c743 LP |
443 | if (isempty(name)) { |
444 | free(c->data[PROP_STATIC_HOSTNAME]); | |
445 | c->data[PROP_STATIC_HOSTNAME] = NULL; | |
446 | } else { | |
447 | char *h; | |
7640a5de | 448 | |
66a4c743 | 449 | if (!hostname_is_valid(name)) |
df2d202e | 450 | return sd_bus_reply_method_errorf(m, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name); |
7640a5de | 451 | |
66a4c743 LP |
452 | h = strdup(name); |
453 | if (!h) | |
454 | return log_oom(); | |
7640a5de | 455 | |
66a4c743 LP |
456 | free(c->data[PROP_STATIC_HOSTNAME]); |
457 | c->data[PROP_STATIC_HOSTNAME] = h; | |
458 | } | |
7640a5de | 459 | |
66a4c743 LP |
460 | r = context_write_data_static_hostname(c); |
461 | if (r < 0) { | |
462 | log_error("Failed to write static host name: %s", strerror(-r)); | |
df2d202e | 463 | return sd_bus_reply_method_errnof(m, r, "Failed to set static hostname: %s", strerror(-r)); |
66a4c743 | 464 | } |
7640a5de | 465 | |
66a4c743 | 466 | log_info("Changed static host name to '%s'", strna(c->data[PROP_STATIC_HOSTNAME])); |
7640a5de | 467 | |
66a4c743 | 468 | sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "StaticHostname", NULL); |
7640a5de | 469 | |
df2d202e | 470 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 471 | } |
7640a5de | 472 | |
66a4c743 LP |
473 | static int set_machine_info(Context *c, sd_bus *bus, sd_bus_message *m, int prop, sd_bus_message_handler_t cb) { |
474 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
102d8f81 | 475 | int interactive; |
66a4c743 LP |
476 | const char *name; |
477 | int r; | |
478 | ||
479 | assert(c); | |
480 | assert(bus); | |
481 | assert(m); | |
482 | ||
483 | r = sd_bus_message_read(m, "sb", &name, &interactive); | |
484 | if (r < 0) | |
df2d202e | 485 | return sd_bus_reply_method_errno(m, r, NULL); |
66a4c743 LP |
486 | |
487 | if (isempty(name)) | |
488 | name = NULL; | |
489 | ||
490 | if (streq_ptr(name, c->data[prop])) | |
df2d202e | 491 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 492 | |
66a4c743 LP |
493 | /* Since the pretty hostname should always be changed at the |
494 | * same time as the static one, use the same policy action for | |
495 | * both... */ | |
496 | ||
497 | r = bus_verify_polkit_async(bus, &c->polkit_registry, m, prop == PROP_PRETTY_HOSTNAME ? | |
498 | "org.freedesktop.hostname1.set-static-hostname" : | |
499 | "org.freedesktop.hostname1.set-machine-info", interactive, &error, cb, c); | |
500 | if (r < 0) | |
df2d202e | 501 | return sd_bus_reply_method_errno(m, r, &error); |
66a4c743 LP |
502 | if (r == 0) |
503 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
504 | ||
505 | if (isempty(name)) { | |
506 | free(c->data[prop]); | |
507 | c->data[prop] = NULL; | |
508 | } else { | |
509 | char *h; | |
510 | ||
511 | /* The icon name might ultimately be used as file | |
512 | * name, so better be safe than sorry */ | |
513 | ||
514 | if (prop == PROP_ICON_NAME && !filename_is_safe(name)) | |
df2d202e | 515 | return sd_bus_reply_method_errorf(m, SD_BUS_ERROR_INVALID_ARGS, "Invalid icon name '%s'", name); |
66a4c743 LP |
516 | if (prop == PROP_PRETTY_HOSTNAME && |
517 | (string_has_cc(name) || chars_intersect(name, "\t"))) | |
df2d202e | 518 | return sd_bus_reply_method_errorf(m, SD_BUS_ERROR_INVALID_ARGS, "Invalid pretty host name '%s'", name); |
66a4c743 | 519 | if (prop == PROP_CHASSIS && !valid_chassis(name)) |
df2d202e | 520 | return sd_bus_reply_method_errorf(m, SD_BUS_ERROR_INVALID_ARGS, "Invalid chassis '%s'", name); |
66a4c743 LP |
521 | |
522 | h = strdup(name); | |
523 | if (!h) | |
524 | return log_oom(); | |
525 | ||
526 | free(c->data[prop]); | |
527 | c->data[prop] = h; | |
7640a5de LP |
528 | } |
529 | ||
66a4c743 LP |
530 | r = context_write_data_other(c); |
531 | if (r < 0) { | |
532 | log_error("Failed to write machine info: %s", strerror(-r)); | |
df2d202e | 533 | return sd_bus_reply_method_errnof(m, r, "Failed to write machine info: %s", strerror(-r)); |
66a4c743 | 534 | } |
7640a5de | 535 | |
66a4c743 LP |
536 | log_info("Changed %s to '%s'", |
537 | prop == PROP_PRETTY_HOSTNAME ? "pretty host name" : | |
538 | prop == PROP_CHASSIS ? "chassis" : "icon name", strna(c->data[prop])); | |
7640a5de | 539 | |
66a4c743 LP |
540 | sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", |
541 | prop == PROP_PRETTY_HOSTNAME ? "PrettyHostname" : | |
542 | prop == PROP_CHASSIS ? "Chassis" : "IconName", NULL); | |
7640a5de | 543 | |
df2d202e | 544 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 545 | } |
7640a5de | 546 | |
66a4c743 LP |
547 | static int method_set_pretty_hostname(sd_bus *bus, sd_bus_message *m, void *userdata) { |
548 | return set_machine_info(userdata, bus, m, PROP_PRETTY_HOSTNAME, method_set_pretty_hostname); | |
7640a5de LP |
549 | } |
550 | ||
66a4c743 LP |
551 | static int method_set_icon_name(sd_bus *bus, sd_bus_message *m, void *userdata) { |
552 | return set_machine_info(userdata, bus, m, PROP_ICON_NAME, method_set_icon_name); | |
553 | } | |
554 | ||
555 | static int method_set_chassis(sd_bus *bus, sd_bus_message *m, void *userdata) { | |
556 | return set_machine_info(userdata, bus, m, PROP_CHASSIS, method_set_chassis); | |
557 | } | |
558 | ||
559 | static const sd_bus_vtable hostname_vtable[] = { | |
560 | SD_BUS_VTABLE_START(0), | |
561 | SD_BUS_PROPERTY("Hostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_HOSTNAME, 0), | |
562 | SD_BUS_PROPERTY("StaticHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_STATIC_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
563 | SD_BUS_PROPERTY("PrettyHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_PRETTY_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
564 | SD_BUS_PROPERTY("IconName", "s", property_get_icon_name, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
565 | SD_BUS_PROPERTY("Chassis", "s", property_get_chassis, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
566 | SD_BUS_METHOD("SetHostname", "sb", NULL, method_set_hostname, 0), | |
567 | SD_BUS_METHOD("SetStaticHostname", "sb", NULL, method_set_static_hostname, 0), | |
568 | SD_BUS_METHOD("SetPrettyHostname", "sb", NULL, method_set_pretty_hostname, 0), | |
569 | SD_BUS_METHOD("SetIconName", "sb", NULL, method_set_icon_name, 0), | |
570 | SD_BUS_METHOD("SetChassis", "sb", NULL, method_set_chassis, 0), | |
571 | SD_BUS_VTABLE_END, | |
572 | }; | |
573 | ||
574 | static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) { | |
575 | _cleanup_bus_unref_ sd_bus *bus = NULL; | |
7640a5de LP |
576 | int r; |
577 | ||
66a4c743 LP |
578 | assert(c); |
579 | assert(event); | |
d0baa06f LP |
580 | assert(_bus); |
581 | ||
76b54375 | 582 | r = sd_bus_default_system(&bus); |
66a4c743 LP |
583 | if (r < 0) { |
584 | log_error("Failed to get system bus connection: %s", strerror(-r)); | |
585 | return r; | |
d0baa06f LP |
586 | } |
587 | ||
66a4c743 LP |
588 | r = sd_bus_add_object_vtable(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", hostname_vtable, c); |
589 | if (r < 0) { | |
590 | log_error("Failed to register object: %s", strerror(-r)); | |
591 | return r; | |
d0baa06f LP |
592 | } |
593 | ||
66a4c743 LP |
594 | r = sd_bus_request_name(bus, "org.freedesktop.hostname1", SD_BUS_NAME_DO_NOT_QUEUE); |
595 | if (r < 0) { | |
596 | log_error("Failed to register name: %s", strerror(-r)); | |
597 | return r; | |
add10b5a LP |
598 | } |
599 | ||
66a4c743 | 600 | if (r != SD_BUS_NAME_PRIMARY_OWNER) { |
add10b5a | 601 | log_error("Failed to acquire name."); |
66a4c743 | 602 | return -EEXIST; |
d0baa06f LP |
603 | } |
604 | ||
66a4c743 LP |
605 | r = sd_bus_attach_event(bus, event, 0); |
606 | if (r < 0) { | |
607 | log_error("Failed to attach bus to event loop: %s", strerror(-r)); | |
608 | return r; | |
609 | } | |
d0baa06f | 610 | |
66a4c743 LP |
611 | *_bus = bus; |
612 | bus = NULL; | |
d0baa06f | 613 | |
66a4c743 | 614 | return 0; |
d0baa06f LP |
615 | } |
616 | ||
617 | int main(int argc, char *argv[]) { | |
66a4c743 LP |
618 | Context context = {}; |
619 | ||
620 | _cleanup_event_unref_ sd_event *event = NULL; | |
621 | _cleanup_bus_unref_ sd_bus *bus = NULL; | |
d0baa06f | 622 | int r; |
d0baa06f | 623 | |
7640a5de LP |
624 | log_set_target(LOG_TARGET_AUTO); |
625 | log_parse_environment(); | |
626 | log_open(); | |
627 | ||
4c12626c | 628 | umask(0022); |
a5c32cff | 629 | label_init("/etc"); |
4c12626c | 630 | |
7640a5de LP |
631 | if (argc != 1) { |
632 | log_error("This program takes no arguments."); | |
633 | r = -EINVAL; | |
634 | goto finish; | |
635 | } | |
636 | ||
c2a14cf0 LP |
637 | if (!check_nss()) |
638 | log_warning("Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!"); | |
639 | ||
66a4c743 LP |
640 | if (argc != 1) { |
641 | log_error("This program takes no arguments."); | |
642 | r = -EINVAL; | |
643 | goto finish; | |
644 | } | |
645 | ||
afc6adb5 | 646 | r = sd_event_default(&event); |
7640a5de | 647 | if (r < 0) { |
66a4c743 | 648 | log_error("Failed to allocate event loop: %s", strerror(-r)); |
7640a5de LP |
649 | goto finish; |
650 | } | |
651 | ||
66a4c743 | 652 | r = connect_bus(&context, event, &bus); |
d0baa06f | 653 | if (r < 0) |
7640a5de | 654 | goto finish; |
7640a5de | 655 | |
66a4c743 LP |
656 | r = context_read_data(&context); |
657 | if (r < 0) { | |
658 | log_error("Failed to read timezone data: %s", strerror(-r)); | |
659 | goto finish; | |
660 | } | |
ad740100 | 661 | |
66a4c743 LP |
662 | r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC); |
663 | if (r < 0) { | |
664 | log_error("Failed to run event loop: %s", strerror(-r)); | |
665 | goto finish; | |
ad740100 | 666 | } |
7640a5de LP |
667 | |
668 | r = 0; | |
669 | ||
670 | finish: | |
66a4c743 | 671 | context_free(&context, bus); |
7640a5de | 672 | |
7640a5de LP |
673 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
674 | } |